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All other core (non-optional) dependencies in this file are exact-pinned (e.g.
httpx = "0.28.1",openai = "2.30.0"), and the comment at line 21 explicitly states these were derived from a known-good PyPI resolution. Relaxingpython-dotenvto>=1.0.1with no upper bound means a futurepython-dotenv 2.xwith breaking changes could silently be pulled in by consumers.As of now there is no 2.x release, but adding a major-version cap is inexpensive insurance and aligns with the project's cautious pinning intent: